Étude des liens entre la fréquence de pratique sportive et la santé des étudiants : mesure des effets de genre sur les troubles alimentaires et les consommations de substances

A number of previous studies have focused on the effect of sport practice on eating disorders and substance use. Most of these studies suggest that among students sport practice is related to low levels of health issues like eating disorders and substance use. However, there is a relative dearth of evidence for these relationships and previous findings are based on comparisons between people involved in sport practice and physical activity and sedentary or largely inactive people. The present study aims to test the effects of frequency of sport practice on college students’ eating disorders and substance use when also controlling for gender effects.MethodsOne thousand and seventy-three first year college students (35.6% boys, 64.4% girls) volunteered to participate in the study. Participants were divided into three groups according to the frequency of their sport practice: students who rarely participated in sport practice (less than one hour a week and not every week; 406 students, 26.4% boys vs 73.6% girls), students who frequently participated in sport practice (every week but less than eight hours a week; 173 students, 33.5% boys vs 66.5% girls), and students who had intensive sport practice (eight hours a week or more; 494 students, 43.9% boys vs 56.1% girls). Alcohol, tobacco and cannabis use were assessed using the Alcohol Smoking and Substance Involvement Screening Test (ASSIST). Three different categories of eating disorders (Dieting, Bulimia, Oral control) were assessed using the EAT-26 inventory. ANOVAs were computed to test for gender differences across the three sport practice groups.ResultsResults of univariate ANOVAs revealed main effects for gender and sport practice on some of the substance use and eating disorder variables, ANOVA with multiple comparisons (Tamhan T Test) revealed a significant interaction effect of sport practice and gender on oral control and tobacco use. For girls, oral control and tobacco use do not vary within the three groups of sport practice whereas for boys the more frequent the sport practice, the lower their scores on oral control and tobacco use. For oral control, boys reported significantly higher scores than girls only when sport practice was rare. For tobacco use, boys reported significantly higher scores than girls when sport practice was rare and lower scores when sport practice was intensive.ConclusionThese results suggest that the positive effects of sport practice vary by gender and that the campaigns for promotion of physical activity might assist in the prevention of health issues amongst students but should be adapted according to the gender of the participants.     

Validation française de l’échelle de mesure de l’orthorexie ORTO-15 et étude des liens avec les troubles des conduites alimentaires et l’image du corps

IntroductionAlthough orthorexia is described as a pathological obsession over healthy food, its nature remains unclear. The results of the majority of studies, mainly using the ORTO-15 measurement scale, remain limited to certain countries and cannot be generalized to every culture. Furthermore, recent studies suggest that body image should be included in the orthorexia research, in addition to eating disorders.ObjectiveThe aim of this study was to propose a French adaptation of the ORTO-15 measurement scale using the Vallerand's transcultural validation procedure, explore its psychometric properties and the links between orthorexic behvaiour, symptoms of eating disorders and body image.MethodFour hundred and nine young adults (89% female), aged 18 to 25 years, completed the online version of the following scales: ORTO-15, Dunn et al. criteria (2016), the Eating-Attitudes Test (EAT-26), Binge Eating Scale (BES) and the Multidimensional Body Self Relations Questionnaire-Appearance Scale (MBSRQ-AS). Exploratory and confirmatory factor analysis (EFA and CFA, respectively) were carried out on two randomly split samples and links between different variables were explored using Spearman correlation coefficients.ResultsThe EFA yielded a single-factor 11-items structure explaining 24% of variance. The adjustment indices from the CFA were excellent. The stability of the scale was satisfactory (ICC = 0.71), despite a questionable internal consistency (α = .50). Links with other scales indicated good structural validity.ConclusionORTO-11-Fr presented satisfactory psychometric properties. Further studies are needed for identifying predictors of orthorexia as well as improving its definition and assessment.